GYTY53 光纜的結構是將 250μm 光纖套入高模量材料制成的松套管中，松套管內填充防水化合物。纜芯的中心是一根金屬加強芯，對于某些芯數的光纜來說，金屬加強芯外還需要擠上一層聚乙烯（PE）。松套管（和填充繩）圍繞中心加強芯絞合成緊湊和圓形的纜芯，纜芯內的縫隙充以阻水填充物。纜芯外擠上一層聚乙烯內護套，雙面涂塑鋼帶（PSP）縱包后擠制聚乙烯護套成纜。

The fibers, 250μm, are positioned in a loose tube made of a high modulus plastic. The tubes are filled with a water-resistant filling compound. A steel wire, sometimes sheathed with polyethylene (PE) for cable with high fiber count, locates in the center of core as a metallic strength member. Tubes (and fillers) are stranded around the strength member into a compact and circular cable core. The cable core is filled with the filling compound to protect it from water ingress, over which a thin PE inner sheath is applied. After the PSP is longitudinally applied over the inner sheath, the cable is completed with a PE outer sheath.

·產品特點 Characteristics

        · 具有很好的機械性能和溫度特性
        · Good mechanical and temperature performance

        · 松套管材料本身具有良好的耐水性能和較高的強度
        · High strength looes tube that is hydrolysis resistant

        · 管內充以特種油膏，對光纖進行了關鍵性保護
        · Special tube filling compound ensure a critical protection of fiber

        · 良好的抗壓性和柔軟性
        · Crush resistance and flexibility

        · 采用下列措施來確保光纜的防水性能：
        · The following measures are taken to ensure the cable watertight:

                - 單根鋼絲中心加強芯
                - Steel wire used as the central strength member

                - 松套管內填充特種防水化合物
                - Loose tube filling compound

                - 完全纜芯填充
                - 100% cable core filling

                - 雙面涂塑鋼帶（PSP）提高光纜的抗透潮能力
                - PSP enhancing moisture-proof

                - 良好的阻水材料防止光纜縱向滲水
                - Water-blocking material

·產品標準 Standards

        GYTY53 光纜符合 YD/T 901-2001 和 IEC 60794-1 標準
        GYTY53 cable complies with Standard YD/T 901-2001as well as IEC 60794-1.